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Fundamentals of Nursing Care: Concepts, Connections, & Skills Chapter 17 Vital Signs Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Six Vital Signs       Blood pressure (BP) Temperature (T) Pulse (P) Respiration (R) Oxygen saturation (SpO2) Pain Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Six Vital Signs      TPR BP Pulse oximetry (pulse ox) or oxygen saturation Pain Be sure to collect a full set of vital signs Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Significance of the Five Objective Vital Signs  Reveal how certain systems are functioning  Provide data regarding patient’s overall condition  Provide a baseline against which subtle changes can be measured Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Significance of Vital Signs  Monitor patient’s physiological condition  Identify new problems  Determine if an intervention should be performed  Determine if prior interventions were effective Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Priceless  Vital signs are only of value when they are accurate!  Only a piece of the puzzle  Must assess the whole person Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills When to Assess Vital Signs       Admission to hospital Each visit to a clinic or emergency room Each home health or hospice visit Every 8 hours or according to hospital policy According to physician’s orders When a patient complains of feeling unusual or different  When you suspect a change in condition Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills When to Assess Vital Signs (cont.)  When administering medications  Before, during, and after blood product transfusion  Before, during, and after surgical and diagnostic procedures  Every 4 hours when one or more vital signs are abnormal Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills When to Assess Vital Signs (cont.)  A second time when an assessment finding is different from the last assessment  Every 5 to 15 minutes if patient condition unstable Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Guidelines for Assessing Vital Signs  Use an organized and systematic approach  Use the appropriate equipment for each patient  Be familiar with normal ranges for different ages  Compare vital signs with previous vital sign range for that specific patient  Know the patient’s medical history, meds, therapies Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Guidelines for Assessing Vital Signs (cont.)  Understand and interpret the vital sign findings  Record and communicate significant vital sign changes to the physician and next shift nurse  Minimize environmental effects on vital signs Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills When to Reassess Vital Signs       After administering IV medications Change in level of consciousness Unstable postoperative condition Uncontrolled bleeding Pale, cold, and clammy skin Whenever you detect or suspect a change in patient condition  Whenever a serious condition is suspected  Whenever your instinct says to reassess Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Terminology Related to Body Temperature      Afebrile: without fever Febrile: fever Hyperthermia: fever Hypothermia: temperature below normal Pyrexia: fever, commonly above 105°F (40.5°C) Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Temperature  Body temperature  Difference between the amount of heat the body produces and the amount of heat that is gained or lost to the external environment  Core temperature  Temperature of the deeper structures and tissues  Normally slightly warmer than superficial body tissue Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Temperature  Core temperature  Most important measurement to maintain  Determines the conditions brain, heart, and internal organs to survive  Sterile thermometer probe inserted into the pulmonary artery, heart, or urinary bladder Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Thermogenesis  Production of heat  Heat is produced  Digestion  Absorption  Breakdown and synthesis of proteins  Intake of food--↑metabolism--↑heat Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Thermogenesis  Shivering  ↑ heat production four to five times normal  Exercise  ↑ up to 50 times normal Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Thermoregulation  Hypothalamus  Elevated temp  Blood vessels dilate—blood brought to skin surface—radiation  Sweat produced—evaporation Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Thermoregulation  Below normal temp  ↑ heat production—cause muscles to shiver  Constrict blood vessels—redirect blood flow to vital organs Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Factors Affecting Body Temperature        Environment Time of day Gender Physical activity and exercise Medications Stress Food or drink  Illness Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Routes Used for Taking Temperature       Oral—elongated tip Tympanic Axillary—elongated tip Skin—strip applied to skin Temporal artery Rectal—round, red tip Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Routes  Body temperature most accurate at a site with a good blood supply  Oral  Can not eat, drink, or smoke 15 to 30 minutes prior to measurement  Plastic sheath  Place under tongue  Non-mercury Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Oral Route  Do Not Use for     Infants Small children Confused Unconscious Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Routes  Axillary  Placed under arm in axillary site  Hold in place 5 to 8 minutes unless electronic Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Axillary Route     Must be continually held in place Temperature may be slightly lower Can be used on unconscious patient Non-invasive Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Routes  Tympanic     Infrared device Adult—pull pinna up and back Child <3—pull pinna down and back Gently insert—pointing tip toward the mandible on the opposite side of the face  Must be facing tympanic membrane Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Tympanic Route  Walls of ear canal are cooler than tympanic membrane  Cannot be used for patients with ear infections or after ear surgery Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Routes  Skin  Disposable strip  Apply to clean, dry skin  Perspiration can affect reading Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Routes  Rectal      Plastic sheath Lubricate the tip of the thermometer Insert 1-1½” (adult) ½ -1” (child) ½” (infant) Leave in place 2 minutes, unless electronic Not recommended as a route of choice due to risk of intestinal perforation Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Rectal Route  Position patient properly  Risk of body fluid exposure  Contraindications to use     Severe hemorrhoids Rectal surgery Immunocompromised High risk for bleeding Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Rectal Route  Must hold in place continuously  Embarrassing—provide privacy  Clean area after removal Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Routes  Temporal artery  Special thermometer  Scans temporal artery  Press scan button—place probe on a dry forehead and slowly move across the width of the forehead and temple then lift off skin and touch neck just behind the earlobe Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Normal Body Temperature by Route       Oral 98.6 F (37 C) Tympanic 98.6 F (37 C) Rectal 99.6 F (37.5 C) Axillary 97.6 F (36.4 C) Range: 97° to 99.6°F or 36.1° to 37.5°C ALWAYS document route temperature was obtained Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Fahrenheit-Celsius Conversion Formula  C = (F – 32⁰) X 5/9  (102⁰ F – 32⁰) 70 X 5 350/9 = 38.9⁰C  F = (C X 9/5) + 32  (38.9⁰ C X 9 350.1/5 70 + 32 = 102⁰F Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Conversion Formula       °F -32/1.8 = °C 100.4°F – 32 = 68.4/1.8 = 38°C °C x 1.8 + 32 = °F 34°C x 1.8 = 61.2 + 32 = 93.2 103.6°F 37°C 95°F 35.6°C 104°F 38.8°C Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Elevated Temperature  Natural response  Immune system functioning properly  Most physicians will not attempt to reduce fever until it elevates above 102⁰F (38.9⁰C)  Elevations above 105⁰F (40.5⁰C) can result in damage to body cells Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Signs and Symptoms       Flushed, warm skin Dry mucous membranes Glassy or droopy eyes Increased irritability or restlessness Photophobia Thirst Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Signs and Symptoms       Headache or myalgia Lethargy or drowsiness Diaphoresis Anorexia Confusion, especially in children and elderly Seizures in infants and children Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Nursing Care  Assess vitals at least q2h—more often depending upon the degree of abnormality  Provide allowed fluids—prevent dehydration—observe for s/s of dehydration  Offer small frequent meals rather than large meal Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Nursing Care     Provide mouth and skin care Encourage limited activity and rest Minimal coverings unless shivering Apply cool compresses or ice packs (covered) forehead, neck, axillae, groin  Keep gowns and linen clean and dry Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Nursing Care  Administer antipyretic medication as ordered  Salicylates  Acetaminophen  Ibuprofen  May need to provide supplemental oxygen to meet the body’s increased metabolic needs Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Hypothermia     Body temperature below 96⁰ F (34.4⁰ C) Slows body metabolism May be deliberate Mild hypothermia  Warm blankets, clothes, ingestion of warm drinks  Cover head Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Hypothermia  More severe hypothermia       Additional measures Heating blankets Hot water bottles Warmed IV fluids Warm baths Return to normal temperature slowly Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Terminology Related to Abnormal Pulses  Bradycardia: heart rate below 60 bpm  Tachycardia: heart rate above 100 bpm  Pulse deficit: the difference between the apical and radial pulse when the radial pulse is slower than the apical pulse Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse     How many chambers in the heart? Oxygenated blood leaves which ventricle? Stroke volume? Cardiac output? Pulse—arterial fluid wave palpated as a gentle pulsing, tapping or throbbing sensation at various points over the body Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Circulation  http://www.youtube.com/watch?v=PgI80UeAMo  http://www.youtube.com/watch?v=tBQa8IBzP 6I Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse  Corresponds to the contractions or beats of the heart  Count a pulse by the number of beats or pulsations per minute  Central or primary pulse site?  Contraction is the strongest at the __________ of the heart Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse  Apical pulse is most accurate  Can hear both heart sounds  Information about valves and contraction of the atria and ventricles  Unable to detect the above with peripheral pulses Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse  Listen for a full minute  Normally hear two sounds  S1 and S2  Lubb/dupp  Together the two sounds represent one complete heartbeat Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Terminology Related to Normal Apical Pulse  S1: as the ventricular contraction begins, the tricuspid and bicuspid valves (AV valves) slam shut; the first heart sound; the longer, lowerpitched sound; the lubb of “lubb dupp”  S2: as the ventricles begin relaxation, the pulmonary and aortic valves (semilunar valves) close; a shorter, sharper sound; the dupp of “lubb dupp” Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Apical Pulse  Assessing pulse rate in children <3  When radial pulse is weak or irregular  Prior to administering heart rate altering medication Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse  www.youtube.com/watch?v=xS3jX1FYG-M  www.youtube.com/watch?v=7j_LniUd2Po Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse  Apical pulse = peripheral pulse  If not  Heart not pumping effectively  Blood flow not strong enough to consistently deliver a fluid wave to the more distant pulse sites Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse  Irregular heart beat  Apical pulse rate faster than the radial pulse rate  Pulse deficit  Radial pulse is slower than the apical pulse rate  Ex. Apcial 88 Radial 82 Pulse deficit 6  Number of heart contractions to weak to produce a fluid wave strong enough to be felt at radial site Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse Assessment  Rate  60 to 100  <60 referred to as ___________________  >100 referred to as ____________________ Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Factors Affecting Pulse Rate  Age     Newborn—120-160 bpm 1-2 years—90 to 120 bpm 3-18 years—80 to 100 bpm Adults—60 to 100 bpm  Emotions  Stimulate SNS, ↑pulse rate Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Factors Affecting Pulse Rate  Medications—can either speed up or slow down pulse rate  Caffeine and nicotine—speed up the rate  Exercise—speeds up the rate—well conditioned athletes may have a pulse rate < 60 Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Factors Affecting Pulse Rate  Meditation, rest, and sleep—lower pulse rate  Circadian rhythm—slowest predawn to dawn and faster as the day progresses  Decreased blood volume  Hemorrhage or dehydration  Pulse rate increases  Attempt to transport oxygen to tissues faster Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse Assessment  Factors affecting pulse rate  Increased fluid—fluid overload pulses full and bounding, sometimes faster  ↑ temp—heart rate ↑ (10 bpm for each degree)  As body cools—each degree slows pulse 10 bpm  Hypoxia--↑ pulse rate Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse Assessment  Cardiovascular disease—varies on disease or disorder—can increase, decrease, or cause irregularity  ↑ intracranial pressure—typically lowers the pulse rate and may cause irregularity  Table 17-4, pg. 358 Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse Assessment  Rhythm  If all beats are evenly spaced—rhythm is regular  If differences in the interval lengths—rhythm is irregular Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Peripheral Pulse Sites         Temporal: used when radial not accessible Carotid: used in cardiac arrest Brachial: measured BP Radial: used for pulse rate assessment Femoral: determines leg circulation Popliteal: determines leg circulation Posterior tibialis: determines foot circulation Dorsalis pedis: determines foot circulation Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Peripheral Pulse Assessment  Strength:  Absent or 0  Weak or 1+ (may also be thready) can be obliterated with slight pressure—lose it  Strong or 2+ easily detected—can be obliterated with moderate pressure--normal  Bounding or 3+ very strong and full—does not obliterate even with moderate pressure Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Peripheral Pulse Assessment  Equality:  Equal strength bilaterally  Weaker than opposite side Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Pulse Assessment  Non-palpable peripheral pulse  Palpate the next proximal pulse in that extremity  If non-palpable, move to the next proximal pulse Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Non-palpable Peripheral Pulse  Also assess     Color Temperature Sensation Capillary refill  Following assessment—obtain doppler Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Term for Normal Respirations Eupnea: evenly spaced respirations of normal depth, between the rate of 12 and 20 breaths per minute Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Abnormal Respiratory Terms  Apnea: respirations cease or are absent  Bradypnea: respiratory rate below 12/minute  Tachypnea: respiratory rate above 20/minute  Dyspnea: labored or difficult breathing  Stertorous: noisy, snoring, labored respirations that are audible without a stethoscope Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Abnormal Respiratory Terms (cont.)  Hypoxemia: decreased oxygen level in blood  Hypoxia: decreased oxygen level in tissues  Orthopnea: difficulty breathing unless in upright position  Stridor: an audible high-pitched crowing sound that results from partial obstruction of the airways Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Respiration  Exchange of oxygen and carbon dioxide  Breathing in—inhalation or inspiration  Breathing out—exhalation or expiration Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Respirations  Be inconspicuous  Placement of hands  Assess radial pulse and keep same position while counting respirations  If respirations abnormal—assess for a full minute Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Factors to Assess Regarding Respiratory Rate      Rate per minute Depth Rhythm Pattern Respiratory effort Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Respirations  Rate     One inspiration + one expiration= a respiration Observe the rise and fall of the chest Count the number of respirations Normal rate—12 to 20 Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Respirations  Depth  Observe the amount of chest expansion with each breath  The volume of air that is inhaled  Subjective  Shallow, normal, or deep Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Respirations  Rhythm and pattern  Regular or evenly spaced intervals between respirations  If not evenly spaced—irregular  Discuss irregular respirations noted in Table 17-7, pg. 362 Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Abnormal Respiratory Pattern  Cheyne-Stokes respirations  Respirations begin shallow, gradually increase in depth and frequency then begin to decrease in depth and frequency until slow and shallow— followed by a period of apnea (can last 10 to 50 seconds)  Then starts over again…… Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Cheyne-Stokes Respirations  Ominous sign      Coma Heart failure Head injury Drug overdose Impending death Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Abnormal Respiratory Pattern  Biot’s Respirations  Respirations are faster, deeper and irregular with periods of apnea Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Biot’s Respirations  Meningitis  Central nervous system disorders Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Abnormal Respiratory Pattern  Kussmaul’s Respirations  Respirations increased in rate and depth with long, strong, blowing or grunting exhalations Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Kussmaul’s Respirations  Diabetic ketoacidosis  Renal failure Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Respirations  Respiratory effort  Amount of work required to breathe  Effortless and performed without thinking  If working hard to breathe—startled, wide-eyed, anxious Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Respirations  Exertional dyspnea  Speaking, eating, repositioning, or ambulating  Use of accessory muscles—neck and abdominal Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Abnormal Breath Sounds  Wheezes—musical, whistling—audible or auscultation  Crackles or rales (fine or coarse)—air moving over secretions--fluid  Rhonchi—continuous low pitched, rattling, bubbling, snoring…  Stridor (sometimes heard without use of a stethoscope) Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Abnormal Breath Sounds  www.youtube.com/watch?v=QPBZOohj2a0  http://www.easyauscultation.com/crackleslung-sounds  http://emedicine.medscape.com/article/1894 146-overview Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Terminology Related to Blood Pressure  Diastolic pressure: measurement of the pressure exerted by the blood on the artery walls while the heart ventricles are not contracting (at rest); the lower of the two pressures; the bottom number of the BP  Systolic pressure: measurement of the pressure exerted by the blood on the artery walls while the heart ventricles are contracting; the highest of the two pressures; the top number of the BP Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Terminology Related to Abnormal Blood Pressure  Hypertension: the systolic BP consistently over 140 mm Hg or the diastolic BP consistently over 90 mm Hg  Hypotension: the BP suddenly falls 20 mm Hg to 30 mm Hg below the patient’s normal BP or falls below the low normal of 90/60 mm Hg Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Terminology Related to Abnormal Blood Pressure (cont.)  Orthostatic hypotension or postural hypotension: when position changes result in a systolic pressure drop of 15 to 25 mm Hg or the diastolic pressure falls 10 mm Hg Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Blood Pressure  Measurement of the pressure or tension of the blood pushing against the walls of the arteries  The amount of pressure is determined by a combination of the following four circulatory qualities Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Four Circulatory Qualities  Strength of the heart contraction or pumping action of the heart  Blood viscosity or thickness  Blood volume  Peripheral vascular resistance or elastic recoil ability of the blood vessel walls Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Factors Affecting Blood Pressure        Age, race, obesity Exercise, rest, level of hydration Circadian rhythm Anxiety Medications Nicotine and caffeine Hemorrhage, increased intracranial pressure Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement  Systolic  Measurement of the force exerted by the blood against the walls of the arteries during the contraction of the heart ventricles  Diastolic  Measurement of the pressure exerted by the blood on the artery walls while the heart is resting Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement  Measured in millimeters of mercury (mm/Hg)  Written as a fraction  132/74  Systolic—132  Diastolic—74 Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement  Pulse pressure  Measurement of the difference between the systolic and diastolic pressures  Subtract the smaller number from the larger  Usually 30 to 50  Pulse pressure <30 or >50 is abnormal Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement  Adult normal range  90/60 to 120/80  Systolic >120—pre-hypertension  Refer to Table 17-1, pg. 347 Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Management  Hypertension  Systolic readings consistently >140 or diastolic consistently >90  Medical diagnosis of hypertension  BP elevation must be documented on at least two or more separate occasions Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Equipment  Stethoscope  BP cuff—sphygmomanometer  Aneroid  Electronic pressure manometer Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Equipment  Cuff size makes a difference  Cuffs available in child, small and large adult  Correct size is necessary for an accurate reading  Too large ________________  Too small ________________  Width should cover approx. 2/3 upper arm Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Assessment Sites  Normally upper arm with stethoscope over the brachial artery at the antecubital site  Lower arm with stethoscope over the radial artery  If necessary—midthigh with stethoscope over the popliteal artery—Figure 17-4, pg. 348  Systolic may be 10 to 40 mm/Hg higher Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Korotkoff Sounds  First sound: clear, rhythmic tapping sound, gradually increasing in intensity  Second sound: soft, swishing or murmuring sound, representing turbulent blood flow  Third sound: sharper, crisper rhythmic sound  Fourth sound: softening or muffling of rhythmic sound  Fifth sound: silence Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement  First sound—Systolic  Point at which you last hear any sound— documented as diastolic Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement  Blood Pressure Sounds  http://www.practicalclinicalskills.com/bloodpressure-course-contents.aspx?courseid=102 Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement      How high to pump? 2 to 3 mm/Hg per second Be careful—auscultatory gap Inflate enough Listen 10 to 15 mm/Hg after hearing last sound Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills BP Measurement  Do not use if       Mastectomy or removal of lymph nodes Shunt for dialysis Casts, braces, dressings Recent vascular surgery or trauma to area CVA PICC line or IV Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Orthostatic Hypotension     Hypotension occurring with position change When stand from a lying or sitting position Dizziness, lightheadedness, or faint Mild or prolonged Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Orthostatic Hypotension  Normally  Stand—blood pools in legs—body senses ↓--HR ↑--blood vessels constrict to ↑BP  Possible causes—dehydration, heart disease, diabetes, nervous system disorders, medications, blood loss Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Orthostatic Hypotension     Lying—Sitting—Standing Within 1 to 3 minutes BP and pulse rate If systolic drops 20 mm/Hg or diastolic drops 10 mm/Hg  If HR rises > 20 bpm Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Effects of Hypertension on the Body  Gradual loss of elasticity in arterial walls results in less stretch and recoil  Heart has to work harder to pump blood through the cardiovascular system Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Risk Factors for Hypertension       Family history Smoking Chronically high stress level Moderate to heavy alcohol consumption Obesity Elevated cholesterol levels in blood Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Treatment  Lifestyle changes  ↓ dietary salt and fat intake  Weight loss  Smoking cessation, reduce or stop excessive alcohol intake  Stress reduction  ↑ physical activity and exercise  Medications Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Damage Caused by Untreated Hypertension  Brain, in the form of a stroke  Heart, in the form of congestive heart failure or myocardial infarction (heart attack)  Kidneys, resulting in kidney failure  Retinas of the eyes, resulting in loss of vision Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Oxygen Saturation  Pulse oximeter  Assessment sites  Fingertip, earlobe, bridge of the nose or when circulation adequate, the toe  Infants?  Pulse saturation—SpO2  Intermittent or continuous Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Oxygen Saturation  Assessment site      Adequate blood flow Clean and dry—moisture interferes with accuracy No artificial nails No dark fingernail polish Patient movement interferes with accuracy Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Characteristics of Pain to Be Assessed  Site or location  Characteristics  Constant or intermittent?  Sharp, dull, stabbing, cramping, or burning  Severity of pain using a pain scale that is appropriate for age and comprehension Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Neuro Check       Assessing neurological system Monitoring neurological system Pupils—PERRL Level of Consciousness—LOC Verbalization Facial symmetry Copyright © 2011 F.A. Davis Fundamentals of Nursing Care: Concepts, Connections, & Skills Neuro Check  Upper extremity strength  Assess right and left side—equal in strength?  Lower extremity strength  Assess right and left side—equal in strength? Copyright © 2011 F.A. Davis